摘要
探究不同砂滤料配比暗管排水非全流装置对农田排水过滤效果的影响,以宁夏引黄灌区稻田盐碱地为试验区,分别设置细砂粒(F1)、细砂粒和细碎石1:2混合(F2)、细碎石(F3)3种砂滤料,研究不同砂滤料配比对滤水流量、排盐及滤沙效果的影响。结果表明,与F1和F3处理相比,F2处理可有效减缓砂滤料堵塞程度,F2处理平均滤水流量较F1和F3处理分别提高131.33%和106.45%;F2处理排盐、滤沙效果同样优于F1和F3处理,其中F2处理滤水中平均TDS含量和浊度相比于F1和F3处理分别降低34.64%、31.40%和31.02%、62.18%。综上,宁夏引黄灌区稻田盐碱地暗管排水非全流过滤砂滤料选用细砂粒和细碎石1:2混合较单一砂滤料而言,可有效提升其过滤性能。
In order to explore the effects of different sand filter material ratios subsurface pipe drainage non-total flow device on farmland drainage filtration effect,taking the saline-alkali land of paddy field in Ningxia Yellow River irrigation area as the test area,three kinds of sand filter materials,fine sand(F1),1:2 mixture of fine sand and fine gravel(F2)and fine gravel(F3),were set up respectively to study the effects of different sand filter devices on filtration flow,salt discharge and sand filtration.The results showed that compared with F1 and F3 treatments,F2 treatment could effectively slow down the clogging of sand filter media,and the average drainage flow of F2 treatment increased by 131.33%and 106.45%,respectively.The effects of salt discharge and sand filtration of F2 treatment were better than those of F1 and F3 treatments.The average TDS content and turbidity of F2 treatment were 34.64%,31.40%and 31.02%,62.18%lower than those of F1 and F3 treatments.In summary,the Yellow River irrigation area of Ningxia paddy field subsurface drainage non-full flow filter sand filter material selection fine sand and fine gravel 1:2 mixed compared to a single sand filter material,could effectively improve its filtration performance.
作者
刘嘉斌
田军仓
赵广兴
张萌
王金鹏
LIU Jiabin;TIAN Juncang;ZHAO Guangxing;ZHANG Meng;WANG Jinpeng(School of Civil and Hydraulic Engineering,Ningxia University,Yinchuan 750021,China;Engineering Technology Research Center of Water-Saving and Water Resource Regulation in Ningxia,Yinchuan 750021,China;Engineering Research Center for Efficient Utilization of Modern Agricultural Water Resources in Arid Regions,Ministry of Education,Yinchuan 750021,China)
出处
《东北农业大学学报》
CAS
CSCD
北大核心
2023年第3期61-70,共10页
Journal of Northeast Agricultural University
基金
国家自然科学基金项目(51869024)
宁夏重点研发计划重大项目(2018BBF02022)
国家重点研发项目(2021YFD1900600)
宁夏高等学校一流学科建设项目(NXYLXK2021A03)。
关键词
引黄灌区
盐碱地
暗管排水
非全流过滤
砂滤料
Yellow River irrigation area
saline land
pipe drainage
non-full flow filtering
sand filter material